whitespace « Match « Java Regex Q&A

1. Java regular expression to match _all_ whitespace characters    stackoverflow.com

I'm looking for a regular expression in Java which matches all whitespace characters in a String. "\s" matches only some, it does not match   and similar non-ascii whitespaces. I'm looking ...

2. Regular expression to wrap matching lines inside pound signs but not leading whitespace    stackoverflow.com

Is there a Regular Expression I could use in the Find/Replace feature of my text editor (Jedit) to do the following: Match any lines in a text file that meet these criteria:

1. The ...

3. Need java regex to match substring with multiple whitespace, only one punctuation    stackoverflow.com

I want to make sure that the substring I am matching only has one possible piece of punctuation and as much whitespace as necessary. This is inside of a much longer ...

4. Regex help -- cleaning up whitespace -- Java    stackoverflow.com

I'm trying to view the text of HTML files in a reasonable way. After I remove all of the markup and retain only the visible text, I obtain a String ...

5. Splitting and assigning a string with whitespace as the delimeter    stackoverflow.com

I need help splitting this string, but i can't seem to come with the right way of doing it. Suppose I have two numbers on a line

12 101

6. Matching non-whitespace in Java    stackoverflow.com

I would like to detect strings that have non-whitespace characters in them. Right now I am trying:

!Pattern.matches("\\*\\S\\*", city)

7. Whitespace Matching Regex - Java    stackoverflow.com

The Java API for regular expressions states that '\s' will match for whitespace. So the regex \\s\\s should match for two spaces.

Pattern whitespace = Pattern.compile("\\s\\s");
matcher = whitespace.matcher(modLine);
while (matcher.find()) matcher.replaceAll(" ...

8. regex program alteration excluding whitespace    stackoverflow.com

I have a statement which finds strings that contain one character, say P. This works when matching against a string delimited by no white space e.g.

APAXA

9. Java regex - expression with exactly one whitespace    stackoverflow.com

I want to match all expressions with exactly one whitespace. Currently, I'm using [^\\s]*\\s[^\\s]*. That doesn't seem like a very good way, though.

10. Java regex: Matching Substring with newline followed by whitespace    stackoverflow.com

I am currently trying to extract Substrings from Strings by matching them with a regular expression. The input-strings are all in the form foo.bar("""foobar"""), where foobar is the substring I would ...

11. How to split a string based on punctuation marks and whitespace?    stackoverflow.com

I have a String that I want to split based on punctuation marks and whitespace. What should be the regex argument to the split() method?

12. Java regular expressions    stackoverflow.com

I am trying out some regex patterns here is one I have attempted unsuccessfully: an input string (min:1,max:100) should not have leading and trailing whitespaces or pipe characters and should not ...

13. Java Regex - Checking for Carriage Return    stackoverflow.com

I am writing a regex to capture SQL Injection Keywords on the HTTP request. I am having problems with allowing 0 or more carriage returns. I have tried \s but I get the ...

14. Java Regex: Match a character followed by whitespace?    stackoverflow.com

This is driving me nuts... I have an input string like so:

String input = "T ";

String output = input.replace("T\\s", ...

15. Splitting strings through regular expressions by punctuation and whitespace etc in java    stackoverflow.com

I have this text file that I read into a Java application and then count the words in it line by line. Right now I am splitting the lines into words ...

16. How to split a string with whitespace chars at the beginning?    stackoverflow.com

Quick example:

public class Test {
    public static void main(String[] args) {
        String str = "   a b";
   ...

17. how do I make whitespace optional in a regular expression?    forums.oracle.com

18. Splitting a String by punctuation and whitespace using regex    forums.oracle.com

Hello I was wondering if anyone knew a way to split a string by punctuation and whitespace, for example let's say I have a string that says, Man, he was fast. I've never seen that before! and I want to use the split() method to split the string into the following array \ "Man" \ "," \ "he" \ "was" \ ...

19. \p{Whitespace} throws java.util.regex.PatternSyntaxException    forums.oracle.com